专利摘要:
VEHICLE FRAME, SADDLE-ASSEMBLED VEHICLE PROVIDED WITH THE SAME, AND VEHICLE FRAMEWORK PRODUCTION METHOD. Objective Objective of the invention is to provide a vehicle frame that can satisfy both the weight reduction and the intensification of the stiffness of a cross member and the productivity of a vehicle frame. Solution Medium In which vehicle frame that includes a pair of left and right frame members 6 showing connection holes 45 that individually extend through frame members 6 in a transverse direction of the vehicle and arranged in a spaced relation in the transverse direction of the vehicle with the connection holes 45 coaxially arranged, and a cross member 12 fitted in both connection holes 45 in such a way as to connect the frame members 6 and coupled by welding to both frame members 6, the member transverse 12 is configured from a tube member having a hollow portion 12a that is open at opposite ends thereof, a patch member in the form of a cover 43 is fitted on an inner peripheral face 12b in the vicinity of each of the open ends of the hollow portion 12a of the limb (...).
公开号:BR102012017639B1
申请号:R102012017639-4
申请日:2012-07-17
公开日:2020-10-27
发明作者:Keisuke Kishikawa
申请人:Honda Motor Co., Ltd;
IPC主号:
专利说明:

TECHNICAL FIELD
[001] This invention relates to improvements in a vehicle frame, to a vehicle of the type mounted on a saddle provided with it, and to a method of producing the vehicle frame, the vehicle frame including a pair of frame members left and right showing connection holes that extend individually through them in a transverse direction of the vehicle and arranged in a spaced relationship in the transverse direction of the vehicle with the connection holes arranged coaxially, and a cross member adjusted in both holes connection in such a way to connect the frame members and coupled to both frame members by welding. BACKGROUND OF THE TECHNIQUE
[002] Such a vehicle frame, as described above, in which the cross member is configured from a member similar to a solid rod is conventionally known (referring to Patent Document 1 mentioned below). BACKGROUND TECHNICAL DOCUMENT PATENT DOCUMENT
[003] Patent Document 1
[004] Japanese Patent No. 3534279 SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION
[005] By the way, in such a vehicle frame, as described above, it is preferable to configure the cross member from a hollow tube member in order to obtain weight savings of the vehicle frame. However, in configuring the cross member from a hollow tube member, the cross member sometimes lacks rigidity. In order to reinforce the cross member, such a countermeasure of arranging a disk-shaped patch member, which has a diameter equal to that of the cross member to close the hollow portion in contiguity with an end face of the cross member and weld the adjacent portions seems applicable. However, in such an example, since weld beads protrude relatively from an outer peripheral face of the cross member, they obstruct the adjustment of the cross member in the connection holes of the frame member. Consequently, in this example, such steps of first fitting the cross member into the connection holes of the frame member and welding the cross member to the frame member and then welding the patch member to the end face of the cross member are mandatory. Therefore, with the welding of the patch member, a welding tool sometimes interferes with the structure member, and this makes the welding operation more difficult and reduces the productivity of the vehicle frame. Therefore, it is advisable to form the disk-shaped patch member with a smaller diameter than the outer diameter of the cross member so that the weld beads do not protrude from the outer peripheral face of the cross member. However, this makes it difficult to obtain a reinforcing effect of the cross member by the patch member.
[006] The present invention was created in view of such a situation, as described above, and it is an objective of the same to provide a vehicle frame with which it is possible to obtain both the weight reduction and the intensification of the stiffness of a cross member as well as the productivity of the vehicle chassis, a saddle-mounted vehicle with the vehicle chassis, and a vehicle chassis production method. MEANS TO SOLVE THE PROBLEMS
[007] In order to achieve the objective described above, according to the present invention, a vehicle frame that includes a pair of right and left frame members having connecting holes that individually extend through the frame members in one direction cross-section of the vehicle and arranged in a spaced relation in the cross-sectional direction of the vehicle with the connection holes coaxially arranged, and a cross member adjusted in both connection holes in such a way as to connect the frame members and welded coupled to both the structure members, has a first feature in which the cross member is configured from a tube member having a hollow portion that is open at opposite ends thereof, a patch member in the form of a cover is fitted on a peripheral face internal in the vicinity of each of the open ends of the lower portion of the cross member, a welding margin that is connected to the outer open tremor is provided on the inner peripheral face, and the patch member is welded on the inner peripheral face such that the weld beads are included within the range of the weld margin. It should be noted that the cross member corresponds to a third cross member 12 in an embodiment of the present invention described below.
[008] Furthermore, the present invention presents, in addition to the first feature, a second feature in which the patch member is forcibly adjusted on the inner peripheral face in the vicinity of the open end of the hollow portion of the cross member.
[009] Additionally, the present invention presents, in addition to the first or second feature, a third feature in which the vehicle frame includes a main tube to support a front fork, which supports a front wheel for rotation in it, for movement of direction, a main structure that extends backwards from the main tube, a pair of left and right pivot structures as the paired structure members that extend downwards from a rear portion of the main frame, and supporting a rear fork, which supports a rear wheel for rotation on it, for upward and downward oscillation movement through a pivot axis, and a welded cross member to the pivot structures to connect the pivot structures, and an oscillating member to support a lower end portion of a damping unit in a suspension apparatus to dampen oscillating motion Upward and downward movement of the rear fork is supported for pivoting movement on the cross member.
[0010] In addition, the present invention presents, in addition to the third feature, a fourth feature in which a first cut-out portion that communicates the interior and exterior of the patch member with each other for draining water is provided in a lower portion of a outer peripheral face of the patch member.
[0011] Additionally, the present invention presents, in addition to the third feature, a fifth feature in which a second cut-out portion, intended for communication between the inside and outside of the adjusted and welded patch member on the inner peripheral face in the vicinity of the open end of the hollow portion of the cross member, to allow the entry and exit of the painting fluid is provided in a portion which will reach a lower position of the outer peripheral face of the patch member, when painting the vehicle frame.
[0012] Additionally, according to the present invention, a production method for the vehicle frame that includes the pair of left and right frame members showing the connection holes that individually extend through the frame members in the transverse direction of the vehicle and arranged in a spaced relation in the transverse direction of the vehicle with connection holes coaxially arranged, and the cross member adjusted in both connection holes in such a way as to connect the frame members and coupled by welding to both frame members , presents a sixth feature in which the production method successively performs a step of preparing the configured cross member from a tube member showing the hollow portion that is opened at its opposite ends, a step of adjusting the patch member on the form of cover on the inner peripheral face in the vicinity of each of the open ends of the hollow portion of the transverse limb salt, a step of welding the patch members on the inner peripheral face, a step of adjusting the cross member in the connection holes of the frame members, and a step of welding the outer end portions of the cross member projecting out of the connection holes for the outer side faces of the frame members. EFFECTS OF THE INVENTION
[0013] According to the first feature of the present invention, since the weld beads that couple the patch member to the inner peripheral face of the cross member are included within the range of the weld margin set on the inner peripheral face, the member cross-section can be readily adjusted in the connection holes of the structure member without any disturbance from the weld beads. After insertion, the opposite outer end portions of the cross member projecting outwardly from the connection holes and the left and right frame members can be welded together. In addition, since the patch member has a form of cover showing high rigidity, the stiffness of the cross member can be effectively reinforced, and, consequently, both the reinforcement of the stiffness of the cross member and the intensification of the productivity of the vehicle frame can be obtained simultaneously.
[0014] According to the second characteristic of the present invention, since the patch member is forcefully adjusted on the inner peripheral face in the vicinity of the open end of the hollow portion of the cross member, with welding after adjusting the strength of the member patch, unnecessary movement of the patch member can be suppressed without using a special tool. Consequently, welding can be carried out promptly and accurately, which can contribute to enhancing the efficiency of the welding operation.
[0015] According to the third characteristic of the present invention, the cross member whose stiffness is reinforced by the patch member is connected to the left and right pivot structures to effectively reinforce also the stiffness of the left and right pivot structures. Consequently, a high load acting from the damping unit on the oscillating member can be sufficiently supported and the operation of the suspension device can be stabilized.
[0016] According to the fourth characteristic of the present invention, the first cut-out portion plays the role of discharging rain water or the like admitted into the third cross member to the outside through it, the rain water being able to be prevented from remaining in the member transversal.
[0017] According to the fifth characteristic of the present invention, the second cut-out portion plays the role of allowing, when the vehicle frame is immersed in the painting liquid, the painting liquid to flow into the hollow portion of the cross member or flow out to the outside of the hollow portion. Consequently, the painting of the internal peripheral face of the cross member can be performed well and the excess of painting liquid can be discharged from inside the cross member to the outside.
[0018] According to the sixth characteristic of the present invention, in the production of the vehicle frame, with the successive execution of the adjustment and welding of the patch member in the form of a cover on the peripheral face of the cross member, adjusting, after welding, the cross member in the connection holes of the frame members, and by welding, after adjustment, the outer end portions of the cross member projecting out of the connection holes to the outer side faces of the frame members, the vehicle frame can be produced efficiently. In particular, since the adjustment and welding of the patch member on the internal peripheral face of the cross member is carried out before the cross member is adjusted in the connection holes of the cross members, with such welding, such a problem in which a welding interferes with the structure member is not produced, and the welding operation can be readily performed. In addition, consequently, the weld beads formed on the inner peripheral face of the cross member do not project to the outer peripheral side of the cross member, and therefore the cross member after welding the patch members can be adjusted in the connection holes. structure members. In addition, since the patch member has a covering shape having a high stiffness, the stiffness of the cross member can be effectively reinforced. Consequently, the reinforcement of the stiffness of the cross member and the intensification of the productivity of the vehicle frame can be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a left side elevation view of a motorcycle according to an embodiment of the present invention.
[0020] Figure 2 is an enlarged side elevation view of a motorcycle vehicle frame.
[0021] Figure 3 is a sectional view taken along line 3-3 of figure 2.
[0022] Figure 4 is a view, as indicated by an arrow mark 4 in figure 2.
[0023] Figure 5 is an enlarged section view taken along line 5-5 of figure 2.
[0024] Figure 6 is an enlarged view, as indicated by an arrow mark in figure 5.
[0025] Figure 7 is an explanatory view of a state of coating by immersion of the vehicle frame. MODE FOR CARRYING OUT THE INVENTION
[0026] In the following, an embodiment is described in which the present invention is applied to a motorcycle as a saddle-mounted vehicle with reference to the accompanying drawings. It is noted, in the following description, that the front, the back, the left and the right are represented with reference to the motorcycle.
[0027] First, with reference to figures 1 to 4, a motorcycle vehicle frame F includes a main tube 1, a pair of left and right main structures 2, 2 that extend downward and backward in a moderate gradient from a lower end portion of main tube 1, a pair of left and right descending structures 3, 3 extending downward in an exaggerated gradient from the front end portions of main structures 2, 2, pillars 4, 4 extending from the upper end portions of the main tube 1 and coupled to the main frames 2, 2 behind the coupling points between the descending structures 3, 3 and the main structures 2, 2, braces 5, 5 that interconnect the main structures 2, 2 and the descending structures 3, 3, behind the coupling points between the pillars 4, 4 and the main structures 2, 2, a pair of left and right pivot structures 6, 6 extend downwards from the rear ends of the main structures 2, 2, a pair of left and right seat rails 7, 7 extending backwards and upwards from the upper portions of the pivot structures 6, 6, pillars 8 , 8 to interconnect an intermediate portion of each pivot structure 6 and a rear portion of each seat rail 7 on the same left or right side, a first cross member 10 for connecting intermediate portions of the left and right main structures 2, 2 to each other , a second cross member 11 to connect upper end portions of the left and right pivot structures 6, 6 to each other, a third cross member 12 to connect lower end portions of the pivot structures 6, 6, and a fourth cross member 13 to connect rear end portions of the left and right seat rails 7, 7. In the intermediate portions of the pivot structures To the left and right 6, 6 in the upward and downward direction, support tubes 14, 14 are welded which extend through the intermediate portions along the transverse direction of the vehicle and arranged coaxially with each other.
[0028] In the main tube 1 described above, a front fork 15 that supports a front wheel Wf for rotation is supported for steering movement, and in the left and right pivot support tubes 14, 14, opposite end portions are supported of a pivot axle 17 which supports a rear fork 16, which supports a rear wheel Wr for rotation in it, for upward and downward oscillating movement.
[0029] An E motor is arranged in a region surrounded by the main structures 2, 2, the descending structures 3, 3 and the pivot structures 6, 6, and by a plurality of motor supports 20a to 20d that support the R motor it is attached to the first cross member 10, the main structures 2, 2, the descending structures 3, 3 and the third cross member 12, respectively, by means of pins.
[0030] Engine E includes a crankshaft 21 featuring an axial line extending in the transverse direction of the vehicle, a crankcase 22 to support crankshaft 21, a cylinder block 23 coupled to an upper end of an upper portion of the crankcase such so as to have an axial cylinder line tilted forward Y, a cylinder head 24 coupled to an upper end of the cylinder block 23, a main cover 25 coupled to an upper end of the cylinder head 24, and an oil reservoir 26 coupled to a lower portion of the crankcase 22. In addition, a transmission M is arranged in the crankcase 22, and a countershaft 28 of the transmission M extends through the left side wall of the crankcase 22 in an end portion of it and protrudes into the outside. The countershaft 28 is connected at an end portion of it to the rear wheel Wr via a chain drive device 29 to drive the rear wheel Wr.
[0031] In addition, a suspension device S for damping the upward and downward oscillating movement of the rear fork 16 is interposed between the pivot structure 6 and the rear fork 16. This suspension device S is configured from a member oscillating wheel 35 sustained for upward and downward swinging motion through a first support axis 32 on a lower damping arm 31 attached to the third cross member 12, a tension link 36 connected for oscillating movement between an intermediate portion of the damping arm lower 31 and the rear fork 16 through the second and third support axles 33 and 34, a damping unit 38 interposed between an end portion of the oscillating member 35 and an upper damping arm 37 attached to an intermediate portion of the second cross member 11. Damping unit 38 is connected at an upper end portion of it to the super damping arm 37 attached to the intermediate portion of the second cross member 11 through a fourth support axis 40, and is connected at a lower end portion thereof to an end portion of the oscillating member 35 through a fifth support axis 39.
[0032] As shown in figures 5 and 6, the third cross member 12 is configured of a tube member having a hollow portion 12a that is open at opposite ends thereof, and a cylindrical portion 43a formed on an outer periphery of a member cover patch 43 is forcefully fitted to an inner peripheral face 12b in the vicinity of each open end of the hollow portion 12a. As a result, a predetermined welding margin L reaching an open end of the hollow portion 12a from the patch member 43 is fitted to the inner peripheral face 12b of the third cross member 12, and the cylindrical portion 43a is welded to the inner peripheral face 12b in such a way that the weld beads 44 can be included within the range of the welding margin L. Thus, since the patch member 43 is forcibly adjusted in a fixed position on the inner peripheral face 12b of the third cross member 12 does not move inadvertently during welding, welding in the fixed position to the inner peripheral face 12b can be performed promptly and accurately. Particularly, since there is nothing that can interfere with a welding tool around the exclusive third cross member 12 prior to coupling to the pivot structures 6, 6, the adjustment and welding of patch member 43 on the inner peripheral face 12b of the third cross member 12 can be performed efficiently.
[0033] Thereafter, the third cross member 12 is fitted in the connection holes 45, 45 provided respectively in the lower end portions of the pivot structures 6, 6 and coaxially arranged in such a way as to connect the left, right pivot structures 6 , 6. As a result, since the weld beads 44 included within the welding margin L of the inner peripheral face 12b of the third cross member 12 do not appear on the outer face of the third cross member 12, the third cross member 12 can be readily adjusted to the connection holes 45, 45 without any disturbance from the weld beads 44. After the third cross member 12 is adjusted, it is welded to the opposite end portions of it on the external side faces of the left and right pivot structures right 6, 6.
[0034] The third cross member 12 showing the hollow portion 12a that is open at the opposite ends of it is reinforced at the opposite end portions of it effectively by the patch members in the form of cover 43 showing high rigidity, and the left pivot structures and right 6, 6 are connected to each other by this reinforced third cross member 12. Consequently, the stiffness of the pivot structures 6, 6 is also efficiently reinforced. Furthermore, since the oscillating member 35 supporting the lower end of the damping unit 38 in the suspension apparatus S is supported for rotation in the lower damping arm 31 of the third cross member 12, the third cross member 12 and the pivot 6, 6 can sufficiently support a high rear load acting from the damping unit 38 on the oscillating member 35 and can stabilize the functioning of the suspension apparatus S. In this way, the reinforcement of the stiffness of the third cross member 12 formed a from a hollow tube member and the productivity of vehicle frame F can be obtained simultaneously.
[0035] As shown in figures 5 and 6, a first cutout portion 46 is provided on a lower portion of an outer peripheral face of patch member 43 while a second cutout portion 47 is provided on a rear portion of the outer peripheral face of the patch member 43. Both the first and second cut-out portions 46 and 47 communicate the inside and outside of patch member 43 with each other, and the first cut-out portion 46 plays the role of discharging rainwater and the like. admitted on the third cross member 12 to the outside through it, thus preventing rainwater from remaining on the third cross member 12.
[0036] Meanwhile, as shown in figure 7, with the dip painting of the vehicle frame F, when a hook 50a of a painting carrier 50 is fitted on the main tube 1 to suspend the vehicle frame F, the second cut-out portion 47 will reach a lower portion of patch member 43. Consequently, when vehicle frame F is immersed in paint liquid 51, paint liquid 51 will flow to the hollow portion 12a of the third cross member 12 through the second cutout portion 47 or it will flow outwardly from the hollow portion 12a. Consequently, the painting of the inner peripheral face 12b of the third cross member 12 can be improved, and the excess of paint liquid can be discharged outside from inside the third cross member 12.
[0037] With reference back to figure 1, an accommodation box 52 is mounted on structures 2, 2 above the engine E and a tandem type biker seat 53 is connected for opening and closing movement on the seat rails 7, 7 behind the accommodation box 52. A fuel tank T supported by the seat rails 7, 7 is arranged well below the seat 53.
[0038] Although the embodiment of the present invention has been described, the present invention is not limited to the embodiment described above, but various changes in the design can be made without departing from the subject of the present invention. DESCRIPTION OF REFERENCE SYMBOLS F Vehicle frame I Welding range S Suspension apparatus Wf Front wheel Wr Rear wheel 1 Main tube 2 Main structure 6 Structure member (pivot structure) 12 Cross member (third cross member) 12a Hollow portion 12b Inner peripheral face 15 Front fork 16 Rear fork 17 Pivot shaft 35 Swing member 38 Damping member 43 Patch member 44 Weld bead 45 Connecting hole 46 First cut portion 47 Second cut portion
权利要求:
Claims (6)
[0001]
1. Vehicle frame that includes: a pair of left and right frame members (6, 6) with connecting holes (45, 45) that individually extend through the frame members (6, 6) in a transverse direction vehicle and arranged in a spaced relation in the transverse direction of the vehicle with the connection holes (45, 45) coaxially arranged; and a cross member (12) fitted in both connection holes (45, 45) in such a way as to connect the frame members (6, 6) and coupled by welding to both frame members (6, 6), characterized by the fact that the cross member (12) is configured from a tube member having a hollow portion (12a) that is open at the opposite ends of it, a patch-shaped member (43) is fitted in a inner peripheral face (12b) in the vicinity of each of the open ends of the hollow portion (12a) of the cross member (12), a welding margin (L) that is connected to an open ex-tremor to be provided on the inner peripheral face (12b ), and the patch member (43) is welded to the inner peripheral face (12b) in such a way that the weld beads (44) are included within the range of the welding margin (L).
[0002]
2. Vehicle frame according to claim 1, characterized by the fact that the patch member (43) is forcibly adjusted on the inner peripheral face (12b) in the vicinity of the open end of the hollow portion (12a) of the cross member (12).
[0003]
3. Vehicle of the saddle-mounted type that includes the vehicle frame as defined in claim 1 or 2, characterized by the fact that the vehicle frame (F) includes a main tube (1) to support a front fork (15 ), which supports a front wheel (Wf) for rotation in it, for steering movement, a main structure (2) that extends backwards from the main tube (1), a pair of left and right pivot structures ( 6, 6) insofar as the paired frame members extend downwardly from a rear portion of the main frame (2), and supporting a rear fork (16), which supports a rear wheel (Wr) for rotation in the same, for upward and downward oscillating movement through a pivot axis (17), and the cross member (12) welded to the pivot frames (6, 6) to connect the pivot structures (6, 6), and an oscillating member (35) to support a lower end portion of a unit damping device (38) in a suspension device (S) to dampen the upward and downward oscillating movement of the rear fork (16) which is supported for axial movement in the cross member (12).
[0004]
4. Saddle-mounted vehicle, according to vindication king 3, characterized by the fact that a first cut-out portion (46) that communicates the inside and outside of the patch member (43) with each other for draining water be provided in a lower portion of an outer peripheral face of the patch member (43).
[0005]
5. Saddle-mounted type vehicle, according to vindication king 3, characterized by the fact that a second cut portion (47), which is intended for communication between the inside and outside of the patch member, ( 43) to allow the entry and exit of the painting fluid to be provided in a portion that will reach a lower position of the outer peripheral face of the patch member (43), when painting the vehicle frame (F).
[0006]
6. Production method for the vehicle frame, the vehicle frame including: the pair of left and right frame members (6, 6) featuring the connection holes (45, 45) that individually extend through the members of structure (6, 6) in the transverse direction of the vehicle and arranged in a spaced relation in the transverse direction of the vehicle with the connection holes (45, 45) coaxially arranged; and the cross member (12) fitted in both connection holes (45, 45) in such a way as to connect the structure members (6, 6) and coupled by welding to both structure members (6, 6), characterized by the fact that the production method successively performs a step of preparing the cross member (12) configured from a tube member presenting the hollow portion (12a) which is opened at the opposite ends of it, a step of adjusting the patch member in the form of a cover (43) on the inner peripheral face (12b) in the vicinity of each of the open ends of the hollow portion (12a) of the cross member (12), a step of welding the patch members (43) on inner peripheral face (12b), a step of adjusting the cross member (12) in the connection holes (45, 45) of the frame members (6, 6), and a step of welding the outer end portions of the cross member ( 12) protruding from the connection holes (45, 45) on the external side faces of the the structure members (6, 6).
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法律状态:
2013-07-09| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
2020-05-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
2020-10-27| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/07/2012, OBSERVADAS AS CONDICOES LEGAIS. |
优先权:
申请号 | 申请日 | 专利标题
JP2011-157614|2011-07-19|
JP2011157614A|JP5631273B2|2011-07-19|2011-07-19|Saddle-ride type vehicle and method of manufacturing body frame of saddle-ride type vehicle|
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